DE50106841D1 - Method for heating and cooling extruder cylinders and apparatus therefor - Google Patents

Method for heating and cooling extruder cylinders and apparatus therefor

Info

Publication number
DE50106841D1
DE50106841D1 DE50106841T DE50106841T DE50106841D1 DE 50106841 D1 DE50106841 D1 DE 50106841D1 DE 50106841 T DE50106841 T DE 50106841T DE 50106841 T DE50106841 T DE 50106841T DE 50106841 D1 DE50106841 D1 DE 50106841D1
Authority
DE
Germany
Prior art keywords
oil
temperature
coolant
pump
varied
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE50106841T
Other languages
German (de)
Inventor
Rudolf Zahradnik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
THEYSOHN EXTRUSIONSTECHNIK GES
Original Assignee
THEYSOHN EXTRUSIONSTECHNIK GES
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by THEYSOHN EXTRUSIONSTECHNIK GES filed Critical THEYSOHN EXTRUSIONSTECHNIK GES
Application granted granted Critical
Publication of DE50106841D1 publication Critical patent/DE50106841D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/826—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B29B7/726—Measuring properties of mixture, e.g. temperature or density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/823—Temperature control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C2035/0211—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould resistance heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • B29C2035/1616—Cooling using liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92609—Dimensions
    • B29C2948/92657—Volume or quantity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Extrusion Of Metal (AREA)

Abstract

The quantity of oil used as a heat transfer medium, is controlled continuously. It can be varied between minimum and maximum flowrates An Independent claim is included for corresponding equipment with a conventional cooling spiral (1) and pump (2) for the oil, and an electrical heating element. In the new design, a variable-speed motor (3) drives the pump and/or a proportional valve alters the quantity of oil through a cooling zone. Preferred features: A similar variant based on the foregoing method is claimed. Temperature of the circulating oil is held approximately constant by regulation of coolant quantity. The quantity of coolant for the oil used for heat transfer, is controlled as a function of oil temperature. The oil temperature is raised above the coolant temperature for the minimal flowrate during heating phases. The quantity of oil is varied by changing the speed of the pump drive, and/or by using a proportional valve. The cross section of the extruder cylinder in at least one of the heating zones, is approximately elliptical or oval.
DE50106841T 2000-03-07 2001-03-06 Method for heating and cooling extruder cylinders and apparatus therefor Expired - Lifetime DE50106841D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0037700A AT411890B (en) 2000-03-07 2000-03-07 METHOD FOR HEATING AND COOLING EXTRUDER CYLINDERS AND DEVICE THEREFOR

Publications (1)

Publication Number Publication Date
DE50106841D1 true DE50106841D1 (en) 2005-09-01

Family

ID=3673066

Family Applications (1)

Application Number Title Priority Date Filing Date
DE50106841T Expired - Lifetime DE50106841D1 (en) 2000-03-07 2001-03-06 Method for heating and cooling extruder cylinders and apparatus therefor

Country Status (6)

Country Link
US (1) US6495804B2 (en)
EP (1) EP1132192B1 (en)
AT (2) AT411890B (en)
DE (1) DE50106841D1 (en)
ES (1) ES2244577T3 (en)
PT (1) PT1132192E (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE520513T1 (en) * 2001-05-23 2011-09-15 A San Chemicals Co Ltd METHOD AND DEVICE FOR PRODUCING PELLET FOAM FROM NON-CROSS-ROCLED POLYPROPYLENE RESIN WITH LOWER MELTING POINT
US20030185925A1 (en) * 2002-03-29 2003-10-02 Fuji Photo Film Co., Ltd. Cool-dissolving apparatus and heat-dissolving apparatus for producing polymer solution and products thereof
GB2405132A (en) * 2003-08-19 2005-02-23 Robin Matthew Hilder I/C engine driven extruder heated by exhaust gas
DE10356350B4 (en) * 2003-11-28 2008-04-30 Battenfeld Extrusionstechnik Gmbh Method for tempering a roller part of a planetary roller extruder
ITTO20040717A1 (en) * 2004-10-15 2005-01-15 Incos Spa INJECTOR FOR PLASTIC INJECTION MOLDING EQUIPMENT
ITTO20050158A1 (en) * 2005-03-11 2006-09-12 Incos Spa ENERGY CONTROL SYSTEM FOR PLASTIC INJECTION MOLDING EQUIPMENT
JP4886648B2 (en) * 2007-09-28 2012-02-29 富士フイルム株式会社 Melt extrusion apparatus and method for producing thermoplastic resin film
DE102011114576A1 (en) * 2011-09-30 2013-04-04 Thermo Electron (Karlsruhe) Gmbh extruder
CN102829169A (en) * 2012-08-27 2012-12-19 中冶南方工程技术有限公司 Lubricating cleaning system for coal mill
DE202014003601U1 (en) 2014-05-04 2014-07-03 Ernst Krüger Autothermal cylinder temperature control
AT517592B1 (en) * 2015-11-27 2017-03-15 Engel Austria Gmbh tempering
CN106015905A (en) * 2016-06-30 2016-10-12 南京中船绿洲机器有限公司 Low temperature rise lubrication system of disc separator
US11609021B2 (en) 2017-09-27 2023-03-21 Gd Midea Heating & Ventilating Equipment Co., Ltd. Air conditioner indoor unit, air conditioner control method, air conditioner and storage medium
CN107990409A (en) * 2017-11-03 2018-05-04 广东美的暖通设备有限公司 Indoor apparatus of air conditioner, the control method of air-conditioning, air-conditioning and storage medium
CN108748815B (en) * 2018-08-21 2023-12-08 长春市三才科技发展有限公司 Reciprocating heating forming machine for nylon tube
CN116277870A (en) * 2022-04-12 2023-06-23 新天力科技股份有限公司 Intelligent production line suitable for plastic packaging containers

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1467944A (en) * 1965-12-23 1967-02-03 Device for controlling the temperature of an extruder cylinder
DE1939248A1 (en) * 1969-08-01 1971-02-11 Metallgesellschaft Ag Arrangement for temperature control of melt extruders
US4102958A (en) * 1974-05-02 1978-07-25 Owens-Illinois, Inc. Method of controlling an extruder
US4088430A (en) * 1976-03-12 1978-05-09 Phillips Petroleum Company Automatic control of extrusion
GB1572514A (en) * 1976-04-23 1980-07-30 Durapipe Ltd Moulding of synthetic plastics products
DE2756752A1 (en) * 1977-12-20 1979-06-21 Werner & Pfleiderer Cooling or heating a screw-extruder barrel with interior recess - contg. a wearing inset, using a heat-exchanger coil for conveying tempering medium, and packing remaining space with low-melting metal alloy
US4272466A (en) * 1980-08-04 1981-06-09 Harrel, Incorporated System and method of temperature control for plastics extruder
DE3308138A1 (en) * 1983-03-08 1984-09-13 Riedel Kälte- und Klimatechnik GmbH & Co KG, 8500 Nürnberg ARRANGEMENT FOR TEMPERATURE DEVICES FOR PLASTIC PRODUCTION OR PLASTIC PROCESSING
DE3335954A1 (en) * 1983-10-04 1985-04-04 Roland Dipl.-Kaufm. 7022 Leinfelden-Echterdingen Belz METHOD FOR CARRYING OUT CHEMICAL REACTIONS, ESPECIALLY FOR THE PRODUCTION OF PLASTICS WITH THE AID OF EXTRUDERS, AND SYSTEM FOR THAT
US4548341A (en) * 1983-11-02 1985-10-22 At&T Technologies, Inc. Plastic injector with heat control
DE3629995C1 (en) * 1986-09-03 1988-02-18 Reifenhaeuser Masch Plant for the extrusion of thermoplastic
US5355938A (en) * 1989-03-20 1994-10-18 Toshiba Machine Co., Ltd. Temperature control device
US5149193A (en) * 1991-01-15 1992-09-22 Crompton & Knowles Corporation Extruder temperature controller and method for controlling extruder temperature
US5462423A (en) * 1993-04-13 1995-10-31 Sencorp Systems, Inc. Apparatus for non-mechanical die lip temperature adjustment in an extruder
EP0785061A4 (en) * 1995-07-20 2000-04-26 Sato Iron Works Temperature control system and kneading extrusion molding machine provided with the same

Also Published As

Publication number Publication date
EP1132192B1 (en) 2005-07-27
EP1132192A3 (en) 2004-01-21
PT1132192E (en) 2005-09-30
ATE300412T1 (en) 2005-08-15
ATA3772000A (en) 2003-12-15
EP1132192A2 (en) 2001-09-12
US6495804B2 (en) 2002-12-17
ES2244577T3 (en) 2005-12-16
US20010025708A1 (en) 2001-10-04
AT411890B (en) 2004-07-26

Similar Documents

Publication Publication Date Title
DE50106841D1 (en) Method for heating and cooling extruder cylinders and apparatus therefor
US4893479A (en) Compressor drive system
HK1069626A1 (en) System and method for rapid heating of fluid
CA1088184A (en) Electronic speed control for a variable speed fan drive
KR880701855A (en) Dual Bed Heat Pump
DE69425914D1 (en) Process for rapidly changing heating and / or cooling
EP0875631A4 (en) Cooling device for a construction machine
EP0903482A3 (en) Control device of the coolant circuit for an internal combustion engine
DE3878919D1 (en) DEVICE AND METHOD FOR COOLING THE ENGINE.
NO20010665D0 (en) A method of controlling the temperature of a climate chamber, as well as a climate device
ATE410312T1 (en) REVERSIBLE HEAT SENSITIVE RECORDING MATERIAL, IMAGE PRODUCING APPARATUS AND IMAGE PRODUCING METHOD
DE69000262D1 (en) METHOD AND APPARATUS FOR REGULATING OR CONTROLLING THE HEATING DEGREE OF A GRAINY SOLID, IN PARTICULAR A FLUID OR HIKING BED HEAT EXCHANGER WITH SEVERAL CHAMBERS.
DE69404872D1 (en) Cooling method and device for an extruder barrel
EP0841203A3 (en) Heating apparatus for vehicle
WO2005004626A3 (en) Process control scheme for cooling and heating compressible compounds
ATE299766T1 (en) METHOD AND DEVICE FOR THERMAL CONTROL OF A CONTINUOUS CASTING MOLD
DE10009959B4 (en) Method for protecting an engine against overheating and control and / or regulating device therefor
EP1203894A3 (en) Bearing cooling device
FR2863661B1 (en) METHOD FOR THERMALLY REGULATING A FLUID CIRCUIT CIRCUIT, ESPECIALLY FOR AN ENGINE COOLING CIRCUIT
ATE410526T1 (en) METHOD AND DEVICE FOR HEAT TREATING WORKPIECES
DE60316194D1 (en) METHOD AND DEVICE FOR COOLING DRILLING LIQUID
NL9000003A (en) CLOSED USAGE CIRCUIT FOR A CALORIC MEDIUM.
EP1316696A3 (en) Control device for a fan and method for operating same
DE60220784D1 (en) METHOD AND DEVICE FOR REGULATING A COOKING DEVICE
SU937969A1 (en) Heat exchange process control method

Legal Events

Date Code Title Description
8364 No opposition during term of opposition